According to Douban movies, in the TV series Aiming, Zhao is a policeman whose duty is to maintain social order. Although Zhao and Yan Sanhe had contradictions and disputes, they did not kill Yan Sanhe. In the play, Su discovered that Chi Tiecheng was the murderer who assassinated the mayor Huang Deming. In order to prevent Chi Tiecheng from continuing to commit crimes, he turned to Boss Yan for help. During the conversation with boss Yan, Sue learned that boss Yan is Xiaoxue's father and Xiaoxue's mother is Qin Zishu. From this story, we can see that we have to make a difficult choice between the duties of the police and personal feelings, which is also one of the themes that TV dramas want to convey.